Home / 20,819,059.26-28,726,873.47-13,078,619.34

Finding the Fourth Proportional to 20,819,059.26, 28,726,873.47 and 13,078,619.34

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Solution

The fourth proportional to 20,819,059.26, 28,726,873.47 and 13,078,619.34 is: 18,046,341.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,819,059.26 : 28,726,873.47 = 13,078,619.34 : x
  2. Step 2: Convert to fraction form
    20,819,059.26/28,726,873.47 = 13,078,619.34/x
  3. Step 3: Cross multiply
    20,819,059.26x = 28,726,873.47 × 13,078,619.34
  4. Step 4: Simplify right side
    20,819,059.26x = 375,707,842,942,474.88
  5. Step 5: Solve for x
    x = 375,707,842,942,474.88/20,819,059.26
  6. Step 6: Final answer
    x = 18,046,341.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.